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#Galaxies

3 posts3 participants0 posts today
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Benjamin Carr, Ph.D. 👨🏻‍💻🧬

Unexpected #JWST Observations Hint We Might Be Inside A #BlackHole
A new study looking at observations by the JWST of the early universe has thrown up a new and intriguing mystery; the majority of #galaxies appear to be rotating in the same direction. This finding, not predicted by our current understanding of the universe, may hint that we are inside a black hole, according to the study's authors.
iflscience.com/unexpected-jwst

Unexpected JWST Observations Hint We Might Be Inside A Black Hole
IFLScience · Unexpected JWST Observations Hint We Might Be Inside A Black Hole"The difference is so obvious that any person looking at the image can see it," Lior Shamir said.
Public
CosmicRami

Updated diagram version for #SciComm usage!

Have stitched together the annotated image, along with that excellent diagram from The Planetary Society.

Someone said to me last night that this looks like a half-cut avocado, and now I cannot unsee it lolololol

Such a great image, and another fine example of how physics allows us to see around corners!

📸 ESA/Webb, NASA & CSA, G. Mahler & Planetary Society

Three tile image with two images in top row. Top row: In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background. The image has been annotated to point out the foreground galaxy as well as the background spiral. In the bottom row: Diagram showing the JWST on one side with light being focused into it from a distant galaxy, via an intermediate galaxy. The Galaxy appears as a ring as light scattered in all directions is delivered to the focal point.
#JWST#Astrodon#Science
Public
Massimo Luciani

#astronomy #cosmology #JWST #galaxies #reionization

An article published in the journal "Nature" reports the results of observations of the primordial galaxy JADES-GS-z13-1. A team of researchers used the James Webb Space Telescope to examine this galaxy, estimating that it dates back to about 330 million years after the Big Bang. The surprise came from the so-called Lyman-alpha radiation because it was much stronger than expected from a galaxy of that era.

english.tachyonbeam.com/2025/0

english.tachyonbeam.comAn intense primordial light from the dark ages of the universeAn article published in the journal 'Nature' reports the results of observations of the primordial galaxy cataloged as JADES-GS-z13-1. A team of researchers...
Public
CosmicRami

Whooooaaaa! The new #JWST image is so good! So much physics going on — physics Einstein himself thought about!

This is called an Einstein Ring. When a massive foreground galaxy (in this case, an elliptical galaxy) warps the space-time around it, light from behind it bends in our direction.

The JWST caught this fantastic example, where the background spiral galaxy is getting warped into our view. It appears as a ring, but we can see its structures like its spiral arms, gas features and star clusters.

Incredible science happening here!

📸 ESA/Webb/NASA/CSA/G. Mahler

I added the annotations in the second image.

In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background.
In the centre is an elliptical galaxy, seen as an oval-shaped glow around a small bright core. Around this is wrapped a broad band of light, appearing like a spiral galaxy stretched and warped into a ring, with bright blue lines drawn through it where the spiral arms have been stretched into circles. A few distant objects are visible around the ring on a black background. The image has been annotated to point out the foreground galaxy as well as the background spiral.
#astronomy#astrophysics#generalrelativity
Public
Flipboard Science Desk

Most of the galaxies in the universe rotate in the same direction. Why this happens highlights a gap in our understanding of how the universe works. "It is still not clear what causes this to happen, but there are two primary possible explanations," says astronomer Lior Shamir of Kansas State University. @ScienceAlert explores both:

flip.it/r0lG1-

ScienceAlert · The Entire Universe Could Exist Inside a Black Hole – Here's WhyWhen you peer out into the depths of the cosmos, a mystery lies there, waiting.
#Science#Space#Universe
Public
rdm

So last night we put our #Dwarf3 telescopes on the studio roof at the back of the house, loaded up some schedules, and let them go all, night.

Inspired by @malcircuit 's post a little while ago, one of the targets I programmed in was Markarian's Chain, a string of galaxies.

This is 170x60s@gain 60, post processed using the automated online denoising tool that Dwarf have made available, and finished off in #Snapseed

A dark sky with many stars. Across to top third is line of galaxies of various sizes, which curves down in a fishhook shape at the right.
#Astronomy#Astrodon#astrophotography
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IRAP

[Zoom on the #CosmicWeb] Have you dived into the deep fields of #Euclid revealed this Wednesday by the @ec_euclid ? Have you navigated between the thousands of #galaxies of different shapes, sizes, colors and masses? So many objects, near and far, fill our #Universe! sky.esa.int/esasky/?hide_welco

What if their spatial distribution could tell us something about two mysterious components : #DarkMatter and #DarkEnergy? This is the gamble taken by the scientists involved in the Euclid mission. To do so, they've designed some unrivalled #instruments: a camera with great depth of field and high resolution records the variety of shapes and spatial distribution of galaxies, while a #spectrometer coupled with a #photometer can determine the distances and masses of galaxies ...

Alain Blanchard, professor at the University of Toulouse and researcher at IRAP, comments on the consortium's first-ever publication of scientific data: irap.omp.eu/en/2025/03/euclid-

Euclid Deep Field South. Copyright ESA
Public
:rss: Hacker News

Oxygen discovered in most distant known galaxy
eso.org/public/news/eso2507/
#ycombinator #ESO #eso_org #Astronomy #Astrophysics #Astronomie #Suedsternwarte #telescopes #detectors #comets #planets #stars #galaxies #nebulae #universe #NTT #VLT #VLTI #ALMA #ELT #La_Silla #Paranal #Garching #Chile

www.eso.orgOxygen discovered in most distant known galaxyTwo different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.
Public
CosmicRami

My mind is still a bit blown from #Euclid telescope images last night.

When I zoomed in on a tiny patch of sky — field of view: 7.1' x 3.6, which is about the size of a grain of rice held at arms length — there was so much to see.

Walls and walls of galaxies. And then more walls of galaxies behind this.

Each galaxy hosts hundreds of billions of stars and there are millions of them, all, in this tiny field of view.

We are tiny tiny creatures.

#Astrodon#Galaxies#scicomm
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